Real-time display of the stomach slow wave and its parameters in a newly designed electrogastrographic system

Chang, Full-Young; Lu, Ching-Liang; Chen, Chih-Yen; Lee, Shou-Dong; Young, Shuenn-Tsong; Wu, Han-Chang; Kuo, Te-Son
January 2001
Journal of Gastroenterology;2001, Vol. 36 Issue 1, p10
Academic Journal
: We designed a new three-channel electrogastrographic (EGG) system, which was easily operated on the Windows 95 platform and could automatically provide slow wave parameters. The purpose of the present study was to test its reliability and accuracy in clinical recording. The system included a signal acquisition device assembled on a printed circuit board. Recorded myoelectrical signals were filtered, amplified, digitized, and transmitted via this device into a notebook personal computer (PC). Based on the short-term Fourier transform the software could transfer the time domain of the signal into the frequency domain. Real-time displayed slow wave parameters, including dominant frequency/power, percent of normal frequency (2-4 cpm), instability coefficient in frequency/power, and power ratio, were automatically renewed every 64 s. Twenty healthy subjects (M/F, 12/8; age, 23-51 years) were enrolled to measure both fast and postprandial myoelectrical activities for each 30-min recording. Our results indicated that meal ingestion significantly increased dominant frequency (3.15 ± 0.20 vs 3.23 ± 0.23 cpm; P < 0.05) and power (26.1 ± 3.8 vs 28.4 ± 3.9 dB; P < 0.05). The power ratio of the meal effect was 2.02 ± 2.07. Other parameters, including instability coefficient and percent of normal frequency, remained similar despite food ingestion. This newly designed EGG system is acceptable for clinically measuring gastric myoelectrical activity; the real-time display of many EGG parameters is an advantage with this new system.


Related Articles

  • Effects of trimebutine maleate on gastric motility in patients with gastric ulcer. Kamiya, Takeshi; Nagao, Toshihiro; Andou, Takashi; Misu, Naoko; Kobayashi, Yuka; Hirako, Makoto; Hara, Michiko; Fujinami, Takao; Kamiya, T; Nagao, T; Andou, T; Misu, N; Kobayashi, Y; Hirako, M; Hara, M; Fujinami, T // Journal of Gastroenterology;1998, Vol. 33 Issue 6, p823 

    The effects of trimebutine maleate (TM), a prokinetic drug, on gastrointestinal motility in patients with gastric ulcer were investigated. Twenty patients with active gastric ulcers were allocated to two groups; 10 patients received a proton pump inhibitor alone (PPI group), given orally, and 10...

  • Gastroduodenal Motility and Dysmotility: An Update on Techniques Available for Evaluation. Parknian, Henry P.; Harris, Arthur D.; Krcvsky, Benjamin; Urbain, Jean-Luc C.; Maurer, Alan H.; Fisber, Robert S. // American Journal of Gastroenterology;Jun1995, Vol. 90 Issue 6, p869 

    Describes available tests for the assessment of gastroduodenal motor function and provides some guidelines for evaluating patients with possible gastroduodenal motor disorders. Background on gastroduodenal motor function; Details of tests of gastric motility; Clinical application of gastric...

  • Distal stomach appears essential in the regulation of gastrointestinal transit. Chang, Full-Young; Lu, Ching-Liang; Chen, Chih-Yen; Lee, Shou-Dong; Doong, Ming-Luen; Wang, Paulus S.; Chang, F Y; Lu, C L; Chen, C Y; Lee, S D; Doong, M L; Wang, P S // Journal of Gastroenterology;2000, Vol. 35 Issue 6, p424 

    Stomach and small bowel both influence gastrointestinal motility. We studied which portion of the stomach was essential for the regulation of gastrointestinal movement and determined the role of vasoactive intestinal polypeptide in this regulation. The study subjects consisted of 45 controls, 46...

  • Gastric electrical activity in normal neonates during the first year of life: effect of feeding with breast milk and formula. Giuseppe Riezzo, Michio; Castellana, Rosa Maria; De Bellis, Teresa; Laporgia, Francesca; Indrio, Flavia; Chiloiro, Marisa // Journal of Gastroenterology;2003, Vol. 38 Issue 9, p836 

    Background. To evaluate the effect of feeding with milk on the gastrointestinal tract, we studied gastric electrical activity in 27 healthy fullterm newborns (15 formula-fed newborns and 12 breast-fed newborns) during the first 6 months of life. Methods. Three-hour electrogastrography (EGG)...

  • Electrogastrography: Methodology, Validation and Applications. Jieyun Yin; Chen, Jiande D. Z. // Journal of Neurogastroenterology & Motility;Jan2013, Vol. 19 Issue 1, p5 

    Electrogastrography (EGG) is a non-invasive method for the measurement of gastric myoelectrical activity. It was first discovered in 1921 and popularized in 1990s. EGG is attractive because it is non-invasive. However, due to its non-invasive nature, there have also been controversies regarding...

  • Evaluation of gastric motor activity in the elderly by electrogastrography and the (13)C-acetate breath test. Shimamoto, Chikao; Hirata, Ichiro; Hiraike, Yutaka; Takeuchi, Nozomi; Nomura, Toshiyuki; Katsu, Ken-ichi; Hiraike, Yutake // Gerontology;2002, Vol. 48 Issue 6, p381 

    Background: Elderly people frequently have symptoms of fullness and appetite loss due to impaired gastric motor activity. These symptoms may cause malnutrition, immunosuppression and other complications.Objective: The effects of aging and daily activity on gastric...

  • Magnetogastrography (MGG) Reproducibility Assessments. de la Roca-Chiapas, J. M.; Córdova, T.; Hernández, E.; Solorio, S.; Solís Ortiz, S.; Sosa, M. // AIP Conference Proceedings;2006, Vol. 854 Issue 1, p69 

    Seven healthy subjects underwent a magnetic pulse of 32 mT for 17 ms, seven times in 90 minutes. The procedure was repeated one and two weeks later. Assessments of the gastric emptying were carried out for each one of the measurements and a statistical analysis of ANOVA was performed for every...

  • Dose-Related Stimulatory Effect of Clarithromycin on Interdigestive Gastroduodenal Motility. Bortolotti, M.; Annese, V.; Mari, C.; Lopilato, C.; Porrazzo, G.; Miglioli, M. // Digestion;2000, Vol. 62 Issue 1, p31 

    Background/Aims: The effect on interdigestive gastroduodenal motility of different doses of clarithromycin, an antibiotic commonly used for Helicobacter pylori eradication, has been investigated. Methods: Gastroduodenal motility was recorded by means of a low-compliance manometric system in 15...

  • Altered Postprandial Responses in Gastric Myoelectrical Activity and Cardiac Autonomic Functions in Healthy Obese Subjects. Xu, Xiaohong; Chen, Dennis; Yin, Jieyun; Chen, Jiande // Obesity Surgery;Apr2014, Vol. 24 Issue 4, p554 

    Background: It is unknown whether gastric myoelectrical activity (GMA) and autonomic functions are altered in obesity. The aims of this study were to investigate GMA and autonomic functions in obese subjects and to compare their responses to different meals with lean subjects. Methods: The study...

  • Podstawowe zasady badania oraz znaczenie kliniczne elektrogastrografii (EGG) u dzieci i dorosÅ‚ych -- konsensus wrocÅ‚awski. Iwańczak, Barbara; Pytrus, Tomasz; Fyderek, Krzysztof; Kaczmarski, Maciej; Uścinowicz, Mirosława; Jonderko, Krzysztof Paweł; Mazur, Marcel; Semianów-Wejchert, Jarosława; Waśko-Czopnik, Dorota; Ksiądzyna, Dorota; Wąsowska-Królikowska, Krystyna; Parzęcka, Monika; Romańczuk, Bartosz; Iwańczak, Franciszek; Paradowski, Leszek // Gastroenterologia Polska / Gastroenterology;2010, Vol. 17 Issue 2, p105 

    Introduction: Electrogastrography (EGG) is a noninvasive diagnostic method recording gastric electrical activity with electrodes affixed to the abdominal wall overlying the stomach. The paper presents consensus on EGG with respect to indications, methodics, interpretation of the results in...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics